Horde modules and ISPConfig 3

There is any compatibility problem between ISPConfig 3 and the next Horde modules?

Ingo
Ingo, the "Email Filter Rules Manager", started as a frontend for the Sieve filter language, and is now a generic and complete filter rule frontend that currently is able to create Sieve, procmail, maildrop, and IMAP filter rules. The IMAP filter driver translates the filter rules on demand to IMAP commands, executed via PHP's IMAP extension and has replaced IMP's internal filtering code. It is now the default filtering agent in IMP H3 (4.x).
More info: http://www.horde.org/ingo/

Passwd
Passwd is the Horde password changing application. While it has been released and is in production use at many sites, it is also under heavy development in an effort to expand and improve the module. Right now, Passwd provides fairly complete support for changing passwords via Poppassd, LDAP, Unix expect scripts, the Unix smbpasswd command for SMB/CIFS passwords, Kolab, ADSI, Pine, Serv-U FTP, VMailMgr, vpopmail, and SQL passwords.
More info: http://www.horde.org/passwd/

SpamAssassin Module
Sam is the Horde module permitting to each user to manage his SpamAssassin or Amavisd-new preferences. For example, it can authorize to change SpamAssassin user scores, manage blacklist and whitelist. User preferences can be stored in a variety of backends such as a SQL database, LDAP storage or on an FTP server.
More info: http://www.horde.org/sam/

Forwards
Forwards is a Horde module for setting user e-mail forwards with support for several popular mailers. Right now, Forwards provides fairly complete support for setting .forward style forwards on Sendmail, Courier, or Qmail mail based systems via an FTP transport. It now also has drivers for Mdaemon, Exim SQL, Exim LDAP, Custom SQL, and SOAP based systems.
More info: http://www.horde.org/forwards/

Vacation
Vacation is a Horde module for managing user e-mail "vacation notices" or "auto-responders." It works via a local vacation program which must be installed and functioning on the server. It supports vacation programs using the .forward-style forwarding mechanism supported by several popular mailers. Right now, Vacation provides fairly complete support for managing .forward style vacation notices on Sendmail or Courier mail based systems via an FTP transport. It also has some support for LDAP, Qmail, and SQL servers.
More info: http://www.horde.org/vacation/

Another question: is possible coordinate Gollem with the web space limit fixed in ISPConfig 3?

Gollem
Gollem is the Horde web-based File Manager, providing the ability to fully manage a hierarchical file system stored in a variety of backends such as a SQL database, as part of a real filesystem, or on an FTP server. It uses the Horde's MIME_Viewer framework to identify file types, associate icons, etc.
More info: http://www.horde.org/gollem/

The new password is encrypted into dbispconfig, I can access into Squirrelmail, the user can change his password via Horde if he knows the old password, the admin can change the password of user without know the old password, etc.

Perfect!

OK, I think this option is secure if Horde, ISPConfig and its MySQL database are in the same server. Correct?

Hi, I'm a few days owner ISPConfig 3 + 7 Debian (based nginx)
Just my old migrate users to the new server.
I would like to share Horde webmail 5 (like on the old server)
I added entries for Nginx, user logs in correctly using the IMP.
After logging in I see a list of folders and their contents:
Mailbox New All
Inbox - 0
Drafts - 1
Send - 0
Junk - 0
Copy - 0
Sended - 1
Trash - 0

When I want to enter the folder I get the error:
Error when communicating with the server. <-- and still Loading...